Central Auditory Processing and the Use of Hearing Aids (CAPHA)

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The purpose of this study is to evaluate the central auditory processing in patients with bilateral sensorineural hearing loss and to observe the change of the central auditory processing ability after using hearing aids.

Condition or disease

Intervention/treatment

Phase

Auditory Processing Disorder, Central

Device: Hearing aids

Not Applicable

Detailed Description:

Screening for recruiting

Among patients who are visiting for hearing disturbance, patients with bilateral sensorineural hearing loss will be included after audiologic tests, history taking and physical examination.

Evaluation of the Central Auditory Processing in Patients (Elder Than 45 Years Old) With Bilateral Sensorineural Hearing Loss and the Change of the Central Auditory Processing Ability by the Use of Hearing Aids (CAPHA)

Change from the baseline in the Hearing In Noise Test (HINT) score at 6 months [ Time Frame: at screening and 6 months after starting hearing aids use ]

HINT measures a person's ability to hear speech in quiet and in noise. In the test, the patient is required to repeat sentences both in a quiet environment and with competing noise being presented from different directions.

The central auditory processing disorder test is composed of three subtests; duration pattern test, frequency pattern test and dichotic words test. The patient is required to discriminate long duration sound from short one and high frequency sound from low one, and to repeat two words that are given simultaneously.

changes from the baseline in the HINT score at 3, 9, and 12 months [ Time Frame: baseline, 3, 9 and 12 months ]

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